Question

I know the answer but i’m not sure how to do it

Answer 1

Area of circle = pi x r^2
= 3.14 x 3^2
= 3.14 x 9
= 28.26 square meters

A sprinkler rotates thru 60° = 1/6 of a circle (360 / 6 = 60°)

so 
28.26 / 6 = 4.7

Answer
4.7 square meters